Parametric Study of Methane Catalytic CVD into Single-walled Carbon Nanotubes Using Spin-coated Iron Nanoparticles

Authors

  • Choon-Ming Seah,

    1. School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia 14300 Nibong Tebal, Seberang Perai Selatan, P. Pinang (Malaysia)
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  • Siang-Piao Chai,

    1. Chemical Engineering Discipline, School of Engineering, Monash University, Jalan Lagoon Selatan 46150 Bandar Sunway, Selangor (Malaysia)
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  • Satoshi Ichikawa,

    1. Institute for NanoScience Design, Osaka University 1-3, Machikaneyama-cho, Toyonaka, Osaka 560-8531 (Japan)
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  • Abdul Rahman Mohamed

    Corresponding author
    1. School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia 14300 Nibong Tebal, Seberang Perai Selatan, P. Pinang (Malaysia)
    • School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia 14300 Nibong Tebal, Seberang Perai Selatan, P. Pinang (Malaysia)
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  • The authors gratefully acknowledge the financial support provided by Universiti Sains Malaysia (USM Fellowship), Fundamental Research Grant Scheme (FRGS) and Long-Term Research Grant Scheme (LRGS). The authors would also like to thank Prof. Tadashi Itoh from Osaka University for allowing the authors to use HRTEM.

Abstract

The effects of reaction temperature, methane partial pressure, and reaction period on growing single-walled carbon nanotubes (SWCNTs) are demonstrated in the present study. Simple methane CVD is carried out using a homemade iron nanoparticles catalyst. The iron nanoparticles are prepared by spin-coating a colloidal mixture of iron(III) nitrate, PEG-400, and absolute ethanol on silicon wafers. The experimental results show that the effects of all three reaction parameters studied, on the morphology and the topography of the SWCNT arrays, are significant. There is no evidence showing that the diameter of SWCNTs is correlated with these three reaction parameters.

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